TY  - BOOK
AU  - Van den Bosch,Robert
AU  - Messenger,P.S.
TI  - Biological control
SN  - 0700202307
U1  - 632.96 
PY  - 1973///
CY  - Aylesburg
PB  - Intertext
KW  - Agricultural pests
KW  - Biological control
KW  - Control
KW  - Insect pests
KW  - Insects, Injurous and Bineficial
N1  - Includes index
ER  -